Maita'i Catamaran, Honolulu

If the idea of a calm, elegant dinner cruise bores you, this might be the kind of marine excursion that you like. The sleek 44-foot craft is one of the fastest in all the islands, thanks to its custom-designed mast. Maita'i Catamaran cuts through the waves at speeds of up to 20 knots—though not without a little splashing. In the daytime, the Maita'i takes passengers on a 90-minute cruise to Diamond Head, while the evening cruise sails straight into the sunset.